1. The 17th International Conference on Health Informatics (HEALTHINF 2024), Rome, Italy, 21-23 February, 2024

2. The 20th International Conference on Service Oriented Computing (ICSOC 2022), November 29-December 2, Sveilla, Spain

3. International Workshop on Very Large Internet of Things (VLIoT 2022), Copenhagen, Denmark, Sept, 2022

4. The 19th International Conference on Service Oriented Computing (ICSOC 2021), November 22-25, Dubai, UAE

5. The 5th International cwWorkshop on Mobile and Pervasive Internet of Things (PerIoT) ), March 22-26, 2021 in Kassel, Germany

6. The 18 International Conference on Service Oriented Computing (ICSOC 2020), December 14-17, Dubai, UAE

7. 30th Australiasian Information Systems Conference, Perth, Australia, Decemeber, 2019

8. The 17th International Conference on Service Oriented Computing (ICSOC 2019), October 28-31, Toulouse, France, France

9. Third International Workshop on Mobile and Pervasive Internet of Things (PerIoT 2019), March 11-15, Kyoto, Japan, USA

10. The 8th International Conference on Data Science, Technology and Applications, 26-28 July, 2019, Prague, Czech Republic

11. The 9th International Conference on Emerging Ubiquitous Systems and Pervasive Networks (EUSPN-2018), November 5-8, Leuven, Belgium, 2018.

12. Fourth IEEE International Conference on Collaboration and Internet Computing (IEEE CIC 2018), Philadelphia, Pennsylvania, USA

13. The 16 International Conference on Service Oriented Computing (ICSOC 2018), November 12-15, Hangzhou, Zhejiang, China

14. The 15th International Conference on Service Oriented Computing (ICSOC 2017), November 13-16, Malaga, Spain

15. First International Workshop on Mobile and Pervasive Internet of Things (PerIoT 2017), March 13-17, Kona, Big Island, Hawaii, USA

16. Third IEEE International Conference on Collaboration and Internet Computing (IEEE CIC 2017), San Jose, California, USA

17. The 14th International Conference on Service Oriented Computing (ICSOC 2016), October 10-13, Banff, Alberta, Canada

18. Second International Workshop on Internet of Things (C-IOT2014), October 22, 2014, Miami, Florida, USA

19. First International Workshop on Internet of Things (C-IOT2013), October 20, 2013, Austin, Texas, USA

20. The 14th International Conference on Web Information System Engineering (WISE2013) October 13th-15th, 2013, Nanjing, China

21. The 13th International Conference on Web Information System Engineering (WISE2012) November 14th-16th, 2012, Paphos, Cyprus

22. The 12th International Conference on Web Information System Engineering (WISE2011) October 13-14, 2011, Sydney, Australia

23. Workshop on Web Services and Agent-based Engineering 2003

24. Workshop on Web Services and Agent-based Engineering 2004

25. Web Information Systems Engineering 2003 (WISE2003)

26. Web Information Systems Engineering 2004 (WISE 2004)

27. IEEE Internal Workshop on Electronic Contracting (WEC2004)

28. 4th VLDB Workshop on Technologies for E-Services (TES'03)

29. 14th International Workshop on Research Issues on Data Engineering (RIDE-WS-ECEG 2004)

30. 7th Asia Pacific Web Conference(APWeb05)

31. The 2004 IEEE International Conference on Services Computin (ICSOC2004)

32. Third International Conference on Business Process Management 2005

33. Third International Conference on Service-Oriented Computing (ICSOC2005)

34. 8th Asia Pacific Web Conference(APWeb06)

35. 7th International Conference on Web Information Systems Engineering 2006

36. 8th International Conference on Web Information Systems Engineering 2007

37. 3rd International Conference on Collaborative Computing (CollaborateCom 2007)

38. 9th International Conference On Web-Age Information Management (WAIM2008)

39. 9th International Conference On Parallel and Distributed Computing, Applications and Technologies(PDCAT 2008)

40. WWW 2008 workshop on Context enabled Source and Selection, Integration and Adaptation (CSSSIA2008)

41. The 4th International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom 2008)

42. The 6th International Conference on Service Oriented Computing (ICSOC2008)

43. 2008 International Conference on e-Business Engineering (ICEBE 2008), October 22-24, Xi'an, China.

44. ENASE 2009, 4th International Conference on Evaluation of Novel Approaches to Software Engineering (ENASE 2009), May 9-10, Milan, Italy.

45. 2009 IEEE International Conference on e-Business Engineering (ICEBE 2009), October 21-23, Macau, China.

46. The First International Workshop on Data and Process Provenance (WDPP 2009) April 20, 2009, Brisbane, Australia.

47. The 8th International Conference on Ontologies, DataBases, and Applications of Semantics (ODBASE 2009), Nov 01-06, 2009, Algarve-Portugal.

48. The 5th International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom2009), Nov 11-14, 2009, Crystal City, Washington D.C.

49. ENASE 2010, 5th International Conference on Evaluation of Novel Approaches to Software Engineering (ENASE 2010), JUly 22-24, Athens, Greece.

50. WAIM 2010, The 11th International Conference on Web-Age Information Management, JUly 15-17, JiuZhaigou, China

51. 2010 IEEE International Conference on e-Business Engineering (ICEBE 2010), November 10-12, Shanghai, China.

52. The 6th International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom 2010), Chicago, Illinois, USA, October 9-12, 2010

53. The 9th International Conference on Ontologies, DataBases, and Applications of Semantics (ODBASE 2010), Oct 26-27, 2010, Crete, Greece.

54. Business process and Services Computing (BPSC 2010), September 27-28, leipzig, Germany

55. ENASE 2011, 6th International Conference on Evaluation of Novel Approaches to Software Engineering (ENASE 2011), June 8-11, Beijing, China

56. 7th International Conference on Collaborative Computing: Networking, Applications and Worksharing, October 15-18, 2011, Orlando, Florida, USA

57. The first workshop on User-focused Service Engineering, Consumption and Aggregation (USECA), Sydney, Australia

58. ENASE 2012, 7th International Conference on Evaluation of Novel Approaches to Software Engineering (ENASE 2012), Wroclaw, Poland, June 28 - July 1st

59. Business process and Services Computing (BPSC 2012), May 21-13, Vilnius, Luthuania

60. The 14th International Conference on Web-Age Information Management (WAIM2013) June 14-16, 2013, Beihaihe, China

61. Workshop on Parallel and Distributed Computing for Machine Learning and Inference Problems (ParLearning 2013) May 24, 2013, Boston, Massachusetts USA

62. 9th International Conference on Collaborative Computing: Networking, Applications and Worksharing (CollaborateCom 20013), October 20-23, 2013, Austin, Texas, USA

External reviewer for:

1. Eighteenth International Joint Conference on Artificial Intelligence

2. Journal of Distributed and Parallel databases

3. Journal of World Wide Web, Internet and Web Information Systems

4. M-services in IEEE Transactions on Systems, Man, and Cybernetics journal

5. International Journal of Cooperative Information Systems (IJCIS)

6. Elsevier International Journal of Systems and Software

7. Israel Science Foundation

8. International Journal on Digital Libraries (Springer)

9. Service Oriented Computing, MIT Press

10. ACM Transactions on Computing for Healthcare

11. ACM Transactions on Information Systems

12. ACM Transactions on the Web

13. ACM Transactions on Internet Technology

14. Elsevier journal on Future Generation Computer

15. Elsevier journal on Knowledge Systems

16. Elsevier journal on Information Fusion

17. Journal of Computing And Information Science In Engineering

18. IEEE Transactions on Automation Science and Engineering

19. IEEE Transactions on Knowledge and Data Engineering

20. IEEE Transactions on Services Computing

21. IEEE Internet of Things Journal